def binarySearch(li,item):
    n = len(li)
    if n == 0:
        return False
    else:
        mid = int(n/2)
        if li[mid] == item:
            return True
        else:
            if item < li[mid]:
                return binarySearch(li[:mid],item)
            else:
                return binarySearch(li[mid+1:],item)

testlist = [0, 1, 2, 8, 13, 17, 19, 32, 42,]
print(binarySearch(testlist, 3))
print(binarySearch(testlist, 13))

t = ['aaa','bbbb',("aaa",3333)]
print(t)